TIDUF76 June   2024

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Why use Radar?
    2. 1.2 TI Corner Radar Design
    3. 1.3 Key System Specification
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 AWRL1432 Single-Chip Radar Solution
      2. 2.3.2 AWRL1432BOOST-BSD Evaluation Module
      3. 2.3.3 TCAN4550-Q1 Integrated CAN-FD Controller and Transceiver
    4. 2.4 System Design Theory
      1. 2.4.1  Antenna Configuration
      2. 2.4.2  Chirp Configuration and System Performance
      3. 2.4.3  Data Path
      4. 2.4.4  Chirp Timing
      5. 2.4.5  Memory Allocation
      6. 2.4.6  Frame Reconfiguration
      7. 2.4.7  Vmax Extension
      8. 2.4.8  Group Tracker
      9. 2.4.9  Dynamic Clutter Removal
      10. 2.4.10 CAN-FD Transceiver
  9. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Required Hardware and Software
      1. 3.1.1 Hardware
      2. 3.1.2 Software and GUI
    2. 3.2 Test Setup
    3. 3.3 Test Results
  10. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
    2. 4.2 Tools and Software
    3. 4.3 Documentation Support
    4. 4.4 Support Resources
    5. 4.5 Trademarks

2.4.2 Chirp Configuration and System Performance

To achieve the specific entry-level BSD use case with a max detection range of 120 m and memory availability of the AWRL1432, the chirp configuration in Table 2-1 is used. Frame reconfiguration used for this application, where the RF front end is reconfigured between alternating "slow" and "fast" frames during runtime to enable the max velocity extension feature.

Table 2-1 Chirp Configuration
PARAMETERCONFIGURATION
Idle time (μs)12.1 (slow), 6.9 (fast)
ADC start time (μs)2.96
Ramp end time (μs)23.4
Number of ADC samples256
Frequency slope (MHz/μs)6.7
MIMOBPM, 2 TX pattern
Number of chirps per profile256
Effective chirp time (μs)35.5 (slow), 30.3 (fast)
Bandwidth (MHz)237.9 (slow), 203.0 (fast)
Frame length (ms)50
Table 2-2 System Performance Parameter
PARAMETERSPECIFICATIONS
Range resolution (m)0.94
Maximum range (m)120
Maximum velocity (kmph)144
Note: The configuration and parameters in Table 2-1 and Table 2-5 are based on the current application release (profile_120m_40mpsec_bsdevm_16tracks.cfg) but not limited by the device.